Just use the lamp aim a bit above and quick run and let go on it and it zooms into chair.

Nade Time till goes off : 2 seconds
Fire fades: 9 seconds after throw

Nade Ranking (stars are rated as 5 is the worst and 0 is the best, so the more stars the more challenge/time/difficulty/risk)

Setup Time: ★☆☆☆☆ (approx. 4 seconds)
Practice till Flawless execute: ★★★☆☆ (approx. 4-5 attempts till you can hit it regularly)
Cost of Failure: ★★★★☆ (Flame lower mid, or yourself)
Throw Difficulty: ★★☆☆☆ (Easy with practice)

Nade Overall Rating: ★Occasional★
|| Occasional- Someone who has utility occasionally but doesn't practice ||